He says Australian diplomats were working to discover if any victim was Australian. Just as the country is focusing all its thoughts on the victims and their families, so politicians should come together in solidarity and respect for the innocent people caught up in this vile attack.

Sending love to the U.K., @ArianaGrande and all of her supporters who were caught up in this terrible attack.

There were children among the 22 killed in the attack, while 59 people were injured, Greater Manchester Police chief Ian Hopkins said early Tuesday.

New York Gov. Andrew Cuomo said he was "heartbroken" by the explosion in Manchester and said that state law enforcement would step up security and patrols.

Greater Manchester Police said there are a "number of confirmed fatalities and others injured" and emergency services are at the scene after reports of an explosion. Manchester Arena holds about 21,000 people, making it slightly larger than PNC Arena in Raleigh, which holds 19.500 for center-stage concerts and 18,800 for end-stage performances.

One fan at the concert with his sister described how the apparent explosion happened as fans were leaving the arena. "At this time, there is no nexus or known threat to the Chicago area but as always, we encourage individuals to report any suspicious activity to 911".

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